*,
::after,
::before {
    box-sizing: border-box;
}

/* 加载时的框架---开始 */
.page-loader {
    position: fixed;
    right: 0;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 1001;
    background: white;
    display: -webkit-box;
    display: -webkit-flex;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -webkit-align-items: center;
    -moz-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -moz-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -moz-box-orient: vertical;
    -moz-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    opacity: 1;
}

/* 加载时的框架---结束 */

/* 加载完毕淡出动画特效---开始 */
.page-loader.fadeout {
    -webkit-transition: all 1s;
    -moz-transition: all 1s;
    -ms-transition: all 1s;
    -o-transition: all 1s;
    transition: all 1s;
    opacity: 0;
}

/* 加载完毕淡出动画特效---结束 */

/* 加载时的旋转动画---开始 */
.spinner-border {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    vertical-align: text-bottom;
    border: .25em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    -webkit-animation: spinner-border .75s linear infinite;
    animation: spinner-border .75s linear infinite
}

@-webkit-keyframes spinner-border {
    to {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg)
    }
}

@keyframes spinner-border {
    to {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg)
    }
}

/* 加载时的旋转动画---结束 */

/* 加载时页面其他属性---开始 */
.page-loader .spinner-border {
    margin-bottom: 15px;
}

.page-loader span {
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #646464;
    font-size: 12px;
}

/* 加载时页面其他属性---结束 */
